Product / Armoured doors Armoured doors TESA’s armoured doors represent security in its maximum expression. Reinforced doors (wooden doors covered with a steel sheet) have been discarded since steel covered with wood in armoured doors provides much higher solidity and resistance. Proof of this is the fact that various approved labs have certified our models. Armoured doors for retrofitHigh-security doors exclusively manufactured for the requirements of the retrofit market. Armoured doors for new constructionAssembly-line-manufactured high-security doors for the new construction market.